I'm looking for a cheap 3" diverter valve to switch my roof rainwater
into my cistern after the roof is washed clean. Currently I'm using a
home made valve made from a 3" cross, but it's a bit stiff and I'd like
to find something better. A regular downspout diverted won't work
because the input pipe is nearly horizontal and the output to cistern is
also horizontal. The waste goes straight down, but that can be changed.

I would like to find a valve that could be operated easily by a chain or
shaft from a location 5' away. A certain amount of leakage is no
problem, we are dealing with bulk water at no pressure. The real
requirement is that it has to mate with 3" plastic DWV pipe.

Any suggestions appreciated.

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